Two men are now facing federal charges in connection with the fatal shooting of a man outside a Walmart in East Oakland during a marijuana deal that apparently went terribly awry, court records show.

Vincent Muzac, 24, of Alameda was found shot to death in the parking lot of the store at 8400 Edgewater Drive at 12:35 p.m. Dec. 22. Police determined that Shawndale Boyd, 30, of Hayward and Damion Sleugh, 26, of Oakland had hatched a plan to rob Muzac of a large quantity of marijuana, authorities said.

On Thursday, a federal grand jury indicted both men on charges of conspiracy to distribute marijuana, robbery affecting interstate commerce, and weapons violations including use of a firearm during a drug trafficking crime, causing murder.